How to Use Betfair for Hedging: A Practical Guide
Hedging through Betfair is one of the most effective ways to lock in profit or cut losses before an event ends. We break down the mechanics, calculations and real scenarios.
What is hedging and why use an exchange
Hedging is placing an opposite bet to partially or fully lock in a result before an event finishes. Key word: 'lock in'. This is not trying to predict an outcome — it's mathematical management of an already open position.
Betfair is the best hedging tool because it lets you lay (bet against) an outcome directly on the exchange without needing a second bookmaker. Plus: no strategy restrictions, commission only on profit.
Mechanics: back and lay
Back — a bet 'for' an outcome. Works like a regular bookmaker bet: you bet on something happening.
Lay — a bet 'against' an outcome. You act as the bookmaker: you accept other players' bets and pay them if the outcome lands. Your win is the opponent's stake if the outcome doesn't land. Your loss is (odds - 1) × amount if it does.
Hedging = back at a regular bookmaker (or earlier on exchange) + lay on Betfair at the changed odds.
Example: locking in profit in-play
You backed team A to win at 3.0 for €100 before the match. By the 60th minute team A leads 1-0, and the lay price on team A's win on Betfair has dropped to 1.5.
Calculating the lay for full lock-in: lay amount = (back stake × back odds) / lay odds = (100 × 3.0) / 1.5 = €200. Lay liability = (1.5 - 1) × 200 = €100.
Result if A wins: back profit €200, lay loss €100 → net profit €100. Result for any other outcome: back loss €100, lay profit €200 → net profit €100. You've locked in €100 regardless of outcome.
Example: cutting a loss
Same back on team A for €100 @ 3.0. By minute 70 the score is 0-1, lay price on team A's win has risen to 6.0.
Full loss lock: lay amount = (100 × 3.0) / 6.0 = €50. If A wins: +€200 back, -€250 lay liability → loss €50. If A doesn't win: -€100 back, +€50 lay → loss €50.
Without hedging you risk losing €100 or winning €200. With hedge — guaranteed €50 loss. The decision depends on your assessment of a comeback probability and acceptable risk.
Key rules and mistakes
Factor in Betfair commission (typically 5%) in your calculations. Real lay profit = opponent's stake × 0.95. Without accounting for commission your calculations will be off.
Don't mechanically hedge every bet — that's a guaranteed loss through commissions. Only hedge when odds have moved enough to lock in real profit, or when you need to cut losses for risk management.
Liquidity: check the available volume at the lay price before entering. If you need a €500 lay but only €80 is available — the price may shift while you fill the order.